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FIPBOO F. LAMBACH Sept. l1, 1945.

BEAMER 1942 7 Sheets-Sheet K1 Filed Sept l2 vuuvull 'Wr F. LAMBACH Sept.l1, 1945.

BEAMER Filed Sept. 12, 1942V 7 Sheets-Sheet 2 Gull U" 'wl F. LAMBACHBEAMER '7 sheets-sheet 4 Filed Sept. l2, 1942 mom F. LAMBACH Sept. 11,1945.

BEAMER Filed Sept. 12, 1942 7 Sheets-Sheet 5 saga MIU" MJ F. LAMBACHSept. 1l, 1945.

BEAMER Filed Sept. 12, 1942 '7 Sheets-Sheet 7 n m m w.

fk/rz LAMBAcH M A 7 Tomar Patented Sept. 11, 1945 UWI ul llu BEAMERFritz Lambach, Tenay, N. J.

Application September 12, 1942, Serial No. 458,087 In Great Britain July24, 1942 2 3 Claims.

This application is a continuation in part of my patent applicationSerial #419,833, filed Nov. 21, 1941, for a Beamer.

My invention relates to textile machines, and more particularly to abeamer or the like.

An object of my invention is to improve upon the construction of beamersor the like as now ordinarily made.

My invention consists in certain novel features of construction of myimprovements as will be hereinafter fully described.

Further objects and advantages of the invention will be apparent fromthe following disclosure of an embodiment thereof.

In the accompanying drawings:

Fig. l an elevational view of a beaming plant including a beamer and acreel, a portion of the wall of the beamer being broken away, and onlythe end portion of the creel being shown in the drawing,

Fig. 2 is a top plan view of the beamer, some parts being broken away,and somev parts being shown in section,

Fig. 3 a sectional view of the beamer taken on line 3-3 of Fig. 2,

Fig. 4 a front elevational view of the beamer, some parts being brokenaway and some parts being shown in section,

Fig. 5 a sectional view of the pressure roll taken on line 5-5 of Fig. 2illustrating the braking mechanism,

Fig. 6 a sectional view of the braking mechanism of the pressure rolltaken on line 6-6 of Fig. 5,

Fig. 7 an elevational view of the Stop-inchstart-station seen in thedirection of the arrow 1 shown in Fig. 4,

Fig. 8 a top plan view of the Stop-inch-startstation shown in Fig. '1,

Fig. 9 a somewhat diagrammatic View of a different embodiment of theload acting on the support carrying the pressure roll,

Fig. 10 a diagram of the wiring system for the electrical equipment ofthe beaming plant, wherein the switches are shown in their normalposition when the relays are deenergized,

Fig. 11 is a fragmentary elevational View of a different embodiment of abeamer, a portion of the wall of the beamer being broken away for abetter disclosure of the parts exposed thereby, and

Fig. 12 is a sectional view of the beamer according to Fig. 11, taken online l2-I2 of said Fig. 11.

Referring now to Figs. 1-4, 100 generally indi- 50 cates a beamer, and2400 generally indicates a creel arranged at a suitable distance fromthe former. An A. C. to D. C. motor generator set generally indicated by2600 is mounted in a suitable manner within the casing of the beamer onsupporting bars 810. The A. C. to D. C. motor generator set 2600 issupplied with alternating currentfrom an electrical source (not shown)through the line 30 leading t0 the hand switch 3540 mounted on a wall ofthe beamer. The A. C. to D. C. motor generator set 2600 delivers directcurrent to various electrical equipments of the beaming plant throughthe electrical connections shown in Fig. 10.

During the normal operation of the beaming plant the w rp yarnsutravelfrom the bobbins 3600 mounte in the creel 2400 through a reed 812secured to the casing of the beamer to a measuring roll 168 rotatablymounted on the beamer and thence to a beam 4400 inserted into the beamerand driven by an electromotor 4600 as will be described hereinafter.

The shaft 108 of the electromotor 4600 carries a grooved step pulley106. A complementary step pulley 1I0 is secured to one end of a mainshaft 102 rotatably arranged in a bearing 8| 4 carried by the frame o1'the beamer. The other end of said main shaft 102 carries a pinion 'H2and a friction pulley 816 keyed thereto. The main shaft 102 may berotated by the electromotor 4600 through belts 104 trained aroundcomplementary portions of the step pulleys 106 and 1|0. The electromotor4600 is mounted on a support BIB secured to a rod 620 rotatably arrangedon a supporting member 822 resting on two spacing tubes 824 and 826secured to the walls of the beamer. Owing to the described mounting ofthe electromotor 4600 the latter tends to swing the support 818 by itsweight about the fulcrum 820 in clockwise direction, whereby the belts104 are automatically tensioned.

A pedal 828 is secured to the end of the rod 620 projecting from thewall of the beamer. If it is desired to change the speed ratio, thesupport 8| 8 carrying the electromotor 4600 may be swung incounter-clockwise direction by means of the pedal 828, whereby the belts104 are loosened, so that they may be easily transferred from one stepof the complementary step pulleys 106 and 110 to the other step thereof.After the carrying out of this transfer the pedal may be released, sothat the belts are automatically tensioned in their new position by theweight of the electromotor 4600 acting on the swingable support 8|8.

The beam 4400 to be inserted into the beamer tion 132 shown in Fig. rbeen placed onto the supporting members, the

has two flanges 838 and 832. A gear 114 is secured to the beam adjacentthe flange 830. Furthermore, discs 134 and 834 serving as brake drumsare secured to the beam outside the flanges 830 and 832 respectively,The vgear 114 may be used for engagement with the driving pinion 1 I 2,and the disc or brake drum 134 may be used for engagement with thedriving friction pulley 818.

On each side of the beamer a. supporting member or cradle 116 and 838respectively is swingably arranged for receiving a beam 4408 and liftingsame into operating position with the gear 114 in engagement with thepinion 112 and the disc or brake drum 134 in engagement with thefriction pulley 816. The supporting member 116 is rotatably mounted onthe cylindrical surface of the bearing 814, as best shown in Figs. 1 and4. Likewise, the supporting member 838 is rotatably mounted on thecylindrical surface of abearing 838 secured to the other side wall ofthe beamer, as best shown in Fig. 3. A shaft 848 carrying a bearingroller 842 for engagement with the disc or brake drum 834 of the beam4400 is rotatably arranged in said bearing 838. Each supporting member116 and 836 respectively is provided with a gear segment 118 and 844respectively. The gear segment 118 meshes with a pinion 120. and thegear segment 844 meshes with a pinion 846. The pinions 120 and 848 arekeyed to a transverse shaft 122 rotatably arranged in the side walls ofthe beamer. One end ofthe shaft 122 projects from the wall of the beamerand carries a worm gear 124 meshing with a self-locking worm 126 securedto the lower end of a, spindle 128 rotatable in bearings 848, 850mounted on the wall of the beamer. The upper end of the spindle 128carries a hand wheel 13 0, by means of which the spindle may be rotatedfor lifting or lowering the supporting member 116 and 838. At the freeend of each supporting member a roller 132 and 852 respectively isrotatably arranged for bearing engagement with the discs or brake drums134 and 834 respectively of the beam 4408.

In order to insert a beam into the beamer, the supporting members 118and 838 are moved into their lower receiving position by turning thehand wheel 138 in one direction. In said receiving position, the bearingroller 132 is in the posil. After a beam 4488 has latter are lifted byturning the hand wheel 138 in opposite direction, until the supportingmembers and beam reach the operating position shown in full lines inFig. 1. In said operating position, the gear 114 is in engagement withthe driving pinion 112, the disc or brake drum 134 is in contactingengagement with the driving friction pulley 818 and the bearing roller132, and the disc or brake drum 834 is in contacting engagement with thebearing rollers 842 and 852. During the described lifting or swinging ofthe supporting members and the beam, axle rods 854 and 856 projectingfrom each end of the beam are in engagement with stationary guides orcams 858 and 860 mounted on the frame of the beamer. The guides or cams858 and 860 are of such a shape. that they lift the teeth of the gear114 to a certain extent above the teeth of the driving pinion 112,whereupon they permit an engagement of the teeth of the gear and pinionin a substantially radial direction. The self-locking worm 128 and aspring loaded pawl 862 cooperating with a ratchet wheel 884 secured tothe spindle 128 prevent an undesired return of the supporting members118 and 838 into the receiving position under the load of the beam.Furthermore, one end of screw threaded bolts 888 and 868 respectively ispivoted to the free end of each supporting member at 810 and 81.2respectively. When the supporting members 118 and 836 are in their upperoperating position, the bolts 888 and 868 may be swung upwards intoslots 814 and 818 respectively of brackets 818 and 888 respectivelysecured to the frame of the beamer, whereupon nuts 882 and 884respectively may be screwed onto the free ends of the bolts forengagement with the brackets. Thus, the supporting members 118 and 838are firmly held in their upper operating position by the coupling meansor latches 868, 882 and 888, 884 connecting the supporting members withthe stationary brackets.

As best shown in Figs. 1 and 4, a lug 138 arranged on the swingablesupporting member 118 cooperates with a spring loaded control element651 of a safety switch 658 mounted on a wall of the beamer. As long asthe lug 138 is disengaged from the control element 851 the spring (notshown) acting on said element holds the safety switch 850 in openposition as shown in the right portion of the wiring diagram of Fig. 10.As will be described hereinafter, the safety switch 850 is arranged inthe line 386 of the motor start circuit and motor start holding circuit,so that the electromotor 4608 cannot be operated as long as the safetyswitch 850 is in open position. 'Ihe safety switch 650 is closed onlyupon engagement of the lug 138 with the spring loaded control element851 when the supporting member 118 is in its upper operating positionshown in full lines in Fig. l. Therefore, the electromotor 4880 can bestarted and operated for driving the beam 4480 through the belts 104,pinion 112 and pulley 818 only when the beam carried by the supportingmembers 118 and 836 is in operating position with its gear 114' in meshwith the driving pinion 112 and with its disc or brake drum 134 incontact with the driving friction pulley 818. As soon as, after adisengagement of the boltsr886 and 888 from the slots of the brackets818 and 880 and after a disengagement of the pawl 862 from the ratchetwheel 864 by means of a lever 886, the hand wheel is rotated for alowering of the supporting members 116 and 838, the lug 138 isdisengaged from the control element 651 of the safety switch 858, sothat the latter is opened by its spring and the motor start circuit isinterrupted, whereby a starting of the electromotor 4680 is renderedimpossible.

As best shown in Figs. 2 and 4, on each side of the beamer adjustingmeans, generally indicated by 888, are arranged for adjusting the beam4400 in the direction of its longitudinal axis in a proper positionrelative to a pressure roll 1320 mounted on the beamer for cooperationwith the winding on the beam in a manner to be described hereinafter.Each adjusting means 888 comprises a hollow sleeve 888 screwed into ascrew threaded hole of the wall of the beamer. A rod 892 car rying atone end thereof a fork-like portion 884 extends through the bore of thesleeve. A roller 898 is rotatably arranged in the fork 884. The shoulderof the fork abuts against one end of the sleeve 890, and a set collar888 secured to the rod rests on the other end of the sleeve, so that aninward or outward movement of the sleeve in the direction of itslongitudinal axis'v upon rotation thereof by means of pins 800 securedthereto causes a corresponding inward or outward movement of the rod 882and the roller 896. The free end of the rod has a square portion 902slidably engaged with a slot of a bracket 904 secured to the wall of thebeamer, whereby the rod is prevented from rotating in the sleeve 890.When, after the insertion of a beam into the beamer, the beam slidablyresting on the rollers of the supporting members has been brought intothe operating position, the beam may be shifted in the direction of itslongitudinal axis into the proper position relative to the pressure rollby rotating the sleeve 890 of the proper adjusting means 888 for movingthe roller 896 associated therewith inwards in contact with the surfaceof one brake drum of the beam and by continuing the inward movement ofthe roller, until the beam has been shifted by the roller into thedesired position. Then, the roller of the other adjusting means 888 ismoved inwards in contact with the surface of the other brake drum of thebeam. Thus, the beam is guided by the two rollers of the two adjustingmeans during its rotation, whereby an undesired oscillation in thedirection of its longitudinal axis is eliminated.

The pressure roll |320 is rotatably mounted on a swingable assemblygenerally indicated by 138. The assembly 138 comprises two double-armedlevers 906 and 908, one on each side of the beamer. The hub 9|0 of thelever 906 is swingably mounted on a stud 140 secured to a side wall ofthe beamer, and the hub 9|2 of the lever 908 is swingably mounted on a.stud 9|4 secured to the opposite side wall of the beamer. A rod 9|6 isrigidly connected to the upper end of the long arm of the lever 906. Oneend of an arm 9|8 is secured to said rod 9I6, the other end of said arm9|8 carries a roller bearing 920, wherein a shaft 922 secured to an enddisc 924 of the pressure roll |320 is rotatably arranged. Likewise a rod926 is rigidly connected to the upper end of the long arm of the lever908, and one end of an arm 928 is secured to said rod 926, while theother end of said arm 928 carries a roller bearing 930, wherein a shaft932 secured to the opposite end disc 934 of the pressure roll |320 isrotatably arranged. The two end discs 924 and 934 of the pressure roll|320 are connected with each other by a cylindrical portion 936. ThusIthe pressure roll |320 is rotatable about the pivots 922 and 932 and isswingable to and from the beam 4400 about the pivots 140 and 9| 4.

The pivots 140 and 9|4 are arranged in such a relationship to the centerof the pressure roll |320, that the pressure roll tends to move by itsown weight toward the beam 4400 in the direction of the arrow A shown inFig. 1, whereby the pressure roll subjects the winding on the beam to acertain pressure. The position of the pressure roll varies in dependenceon the diameter of the winding on the beam. When the pressure roll is inthe position shown in Fig. 1, the beam is full and the diameter of theWinding is large. At the beginning of the beaming operation, however,the diameter of the winding on the beam is considerably smaller, and thecenter of the piessure roll is considerably nearer to the center of thebeam. Owing to this change in the position of the center of the pressureroll the latter would exert a considerably greater pressure on thewinding o n the beam at the beginning of the beaming operation, if therewere no means provided for acting on the assembly 138 to compensate saiddifference in pressure. As best shown in Figs. 13 this compensatingmeans comprises a tension spring 940 stretched between the long arm ofthe double-armed lever 908 and a stationary part 942 of the beamer. Thespring 940 OUGIUH 4NI counteracts and compensates the action of theweight of the pressure roll on the winding on the beam, i. e. the nearerthe pressure roll to the center of the beam and the greater the actionof the weight of the pressure roll, the greater the expansion of thespring and the greater its counteraction. The spring 940 is so designedand arranged, that, during the entire beaming operation, the pressureroll subjects the winding on the beam to a substantially constantpressure irrespective of the variation in the position of the pressureroll in dependence on the increase of the diameter of the winding. Whenthe pressure roll is in the position shown in Fig. 1, the spring 940 iscontracted, so that it causes no action on the pressure roll assembly.

Furthermore, two counter-weights 142, one on each side of the beamer,counteract the action of the weight of the pressure roll on the windingon the beam, whereby the pressure on the winding is reduced to a lowdegree as it may be desirable for the beaming of Warps of certainmaterials. Each counter-weight 142 is adjustably mounted on the long armof a bell cranklever 944 pivoted to the side wall of the beamer at 946.The short arm of said bell crank lever is pivoted to one end of a link948 at 950. The other end of said link 948 is pivoted to the short armof the double-armed lever 906 or 908 respectively at 952. Adjustable setscrews 954 serve to limit the eXtreme position of the lever 944 and ofthe pressure roll assembly 138, |320 connected with said lever.

If it is desired to subject the winding on the beam to an appreciablesubstantially constant pressure during the beaming operation, thearrangement shown in Fig. 9 may be used. The tension spring 940 acts onthe assembly 138 carrying the pressure roll |320 in the same manner asthe tension spring 940 shown in Fig. 3. The weight 142', however, doesnot act as a counterweght but causes a pressure on the winding on thebeam in addition to the pressure caused by the own weight of thepressure roll. The weight 142 is adjustably mounted on a lever 944'pivoted to the Wall of the beamer at; 946'. An intermediate point 950 ofthe lever 844 is pivotally connected With one end of the connecting link948', the other end of which is pivoted to the short arm of thedouble-armed lever 906 or 908 respectively.

As best shown in Figs. 1-3, the double-armed lever 906 carries a gearsegment 144 meshing with a pinion 146, and the double-armed lever 908carries a gear segment 956 meshing with a pinion 958. Both pinions 146and 958 are secured to a cross-shaft 148 rotatably arranged in the wallsof the beamer. Said cross-shaft 148 carries a sprocket 150 connectedwith a sprocket 152 secured to a cross-shaft 154 by means of a chain156. The cross-shaft 148 is rotatably arranged in suitable bearings andcarries the movable lnger (not shown) of an automatic motor fieldrheostat 2580 to be described hereinafter and the movable lingers (notshown) of an automatic three-phase resistor 658 to be describedhereinafter. As wll be readily understood. during the beaming operation,the pressure roll assembly |320, 138 is moiLed in clockwise directionabout the pivots T40 and 9|4 as viewed in Figs. 1 and 3 in accordancewith the increase of the diameter of the wnding on the beam 4400, sothat the automatic motor field rheostat 2580 and the automaticthree-phase resistor 658 are adjusted in dependence on the building upof the winding on the beam through the medium of the gear segments 144,956, pinions 146, 958 and chain drive 150, 152, 156 for a purpose to bedescribed hereinafter.

As best shown in Figs.. 1 and 2, a bevel gear 960 is keyed to thecross-shaft 148 carrying the pinions 146 and 958. This bevel gear is inmesh with a bevel gear 962 secured to the lower end of a spindle 964rotatably arranged in bearings 966 and 968 mounted on the frame of thebeamer. A hand wheel 910 is secured to the upper end of said spindle964. Thus, the pressure roll assembly |320, 138 may be swung about thepivots 140 and 9|4 by hand by means of the hand wheel 918, spindle 964,bevel gears 960 and 962, pinions 146 and 958, and gear seg-ments 144 and956.

As best shown in Figs. 1 and 3, the warp yarns 3400 are trained around ameasuring or yarn roll 168, the shaft 110 of which is rotatably mountedon the frame of the beamer, so that the measuring roll is rotated by thewarp yarns during the beaming operation. 'I'he measuring or yarn roll168 drives a shut oil counter 9800 and a speedometer |680 through themedium of a toothed gearing 912. The shut 01T counter 9800, which issecured to the frame of the beamer and may be of any well known type,serves to cause an automatic stoppage of the beamer as soon as the beam4400 has performed a predetermined number of revolutions for which theshut oi counter has been set. The speedometer |680 mounted on the frameof the beamer serves to indicate the circumferential speed of themeasuring roll 168.

'Ihe Stop-inch-start-station 656 diagrammatically shown in the upperright portion of the wiring diagram illustrated in Fig. comprises astart switch 3820, an inching speed switch 4900 and a stop switch 4|40.The electrical connection of these switches with the circuits of theelectrical equipment of the beamer will be described hereinafter inconnection with the description of the diagram of Fig. 10. At thisportion of the specification it is sufilcient to state that a closure ofboth the start switch 3820 and the inching speed switch 4900 may causean operation of the electromotor 4600 at an extremely low speed, i. e. aso-called inching speed, that a closure of the start switch 3820 alonemay cause an operation of the electromotor 4600 at normal high speed,and that an opening of the stop switch 4|40 causes an interruption ofthe supply of current to the electromotor 4600 for stopping same. f

As best shown in Figs. 1 and 4, the switches 3820, 4900 and 4|40 of the"Stop-inch-start-station 656 are arranged on the inside of an upperextension 914 of a side wall of the beamer. As best shown in Figs. 7 and8, the start switch 3820 and the stop switch 4|40 are directly mountedon the inner surface of the extension 914 by screws. The inching speedswitch 4900, however, is arranged at a certain distance from the innersurface of the extension 914 on bolts 916 and 918 secured to theextension 914. The inching speed switch 4900 rests against a collar 980on the bolt 916. A member 982 carrying a cam 984 and a lever 986 isrotatably arranged on said bolt 916 between the collar 980 and theextension 914. The cam 984 cooperates with the spring loaded controlelements 382| and 4|4| (the springs are not shown) of the start switch3820 and the stop switch 4|40. The lever 986 carries a stud 988 at itsfree end. One end of a link 164 is swingably arranged on said stud 988.The other end of said link 164 is pivotally connected at 990 to the freeend of a lever 982 keyed to a shipper rod 158 rotatably mounted inbearings 162 and 994 (Figs. 4 and '7). A lever 996 is secured to the endof the shipper rod 158 projecting from the bearing 994-, and a tensionspring 160 is stretched between the free end of said lever 996 and astationary point 998 (Fig. 7) in such a way, that the spring tends tohold the mechanism 158, 992, 164, 986, 984, 166 in an intermediateneutral position shown in full lines in Fig. '1. A camlike actuatingelement 166 adapted to cooperate with the spring loaded control element49|0 (the spring is not shown) of the inching speed switch 4900 isswingably mounted on the stud 988 carried by the lever 986. A tensionspring 50 stretched between a point 52 of the element 188 and a stop 54secured to the lever 986 tends to urge said element 166 against saidstop 54 as shown in full lines in Fig. 7.

The operation of the mechanism of the Stopinch-start-station is asfollows:

When the beamer is at a standstill, the mechanism 158, 992, 164, 986,984, 166 is in the neutral position shown in full lines in Fig. '1,wherein the spring loaded control elements 382| and 4|4| of the startswitch 3820 and stop switch 4|40 contact the inactive round portion ofthe cam 984 and the spring loaded control element 49|0 of the inchingspeed switch 4900 contacts the cam surface of the element 166 at theinactive point B, so that the springs (not shown) acting on the controlelements 382| and 49|0 of the start switch 3'820 and inching speedswitch 4900 hold these switches in the open position shown in Fig. 10,and the spring (not shown) acting on the control element 4|4| of thestop switch 4|40 holds same in the closed position shown in Fig. 10. Inorder to start the electromotor 4600 of the beamer, the shipper rod 158is turned by hand through a certain angle into an intermediate positionin the direction of the arrow C shown in Fig. '1. During this rotationof the shipper rod 158 through said limited angle, the cam 984 isrotated in clockwise direction and its elevated portion urges thecontrol element 382| against the action of its spring to the right,whereby the start switch 3820 is closed. At the same `ti-me, the lever986 is turned in clockwise direction and the active portion B--D of thecam-like surface of the element 166 resting against the stop 54 slidesalong the control element 49| 0 and urges same against the action of itsspring to the left, whereby the inching speed switch 4900 is closed.Thus, the start switch 3820 and the inching speed switch 4900 are closedand the electromotor 4600 is operated at inching speed as long as theshipper rod 158 is held against the action of the spring 160 in abovedescribed position wherein the elevated portion of the cam 984 contactsthe control element 382| and the point D of the element 166 contacts thecontrol element 49| 0.

If the shipper rod 158 is turned further from the intermediate positionin the direction of the arrow C into an extreme active position. the cam984 and the lever 986 are turned further in clockwise direction. Theelevated portion of the cam. 984 is of such a. length, that, during thiscontinuation of the rotation of the shipper rod 158, the elevatedportion of the cam remains in contact with the control element 382| andholds the start switch 3820 in closed position: the point E of theelement 166, however, slips off the free ILAHLLJ end oi the controlelement 49|0, whereby the control element 49|0 is released and thespring acting on said control element 4910 returns same into theposition shown in Fig. '7 for opening the inching speed switch. Thus,the start switch 3820 remains in closed position, while the inchingspeed switch 4900 is opened, so that the electromotor 4600 is operatedat normal high speed.

As soon as the shipper rod 158 is released, the spring 160 causes arotation of th'e shipper rod in the direction of the arrow F and areturn of the mechanism 158, 992, 164, 986, 984, 166 into the neutralposition shown in full lines in Fig. 7. During said return of themechanism, the cam 984 and the lever 986 are rotated in counterclockwisedirection. Shortly before the cam 984 reaches the neutral position, theelevated portion of the cam is disengaged from the control element 3821and the latter is urged by its spring against the inactive round portionof the cam, whereby the start switch' 3820 is returned into openposition. Furthermore, during said return of the mechanism, the inchingspeed switch 4900 is not actuated and remains in its open position forthe following reasons: During the return of the lever 986 incounter-clockwise direction, the point E of the swingable element 166hits the lower surface of the control element 49|0, whereby theswingable element 166 is swung against the action of the spring 50 incounter-clockwise direction about the pivot 988 without altering th'eposition of the control element 4910 as indicated in dash and dot linesin Fig. '7. Shortly before the lever 986 reaches the neutral position,the point E of the swingable element 166 slips oil th'e free end of thecontrol element 4910, so that the swingable element 166 is swung by thespring 50 in clockwise direction about the pivot 988 against the stop54. Thus, no actuation of the inching speed switch' 4900 has taken placeand all elements of the mechanism 158, 992, 164, 986, 984, 166 are againin the position shown in full lines in Fig. after the return of saidmechanism by the spring 160 into the neutral position. Although thestart switch 3820 is opened after the release of the shipper rod 158 andthe return of the mechanism into the neutral position, the high' speedoperation of the electromotor 4600 is continued in the embodiment of thebeamer shown in the drawings, as the electrical connections include amotor start holding circuit as will be described hereinafter inconnection with the description of Fig, 10.

During above described movement of the shipper rod 158 from the neutralposition in the direction of the arrow C and back into th'e neutralposition in the direction of the arrow F, the stop switch 4140 is notactuated, as only the round inactive portion of the cam 984 contacts thecontrol element 4141 and does not cause a shifting thereof.

If it is desired to stop th'e beamer by hand, the shipper rod 158 isturned from the neutral position shown in Fig. 1 in the direc `ion ofthe arrow F into a second extreme active position. This rotation of theshipper rod causes a rotation of the cam 984 in counter-clockwisedirection. As soon as the elevated portion of the cam 984 engages thespring loaded control element 414|, the latter is urged against theaction of its spring (not shown) to the left, whereby the stop switch4140 is opened and the beamer is immediately stopped. Upon release ofthe shipper rod, the latter is turned in the direction of the arrow C bythe spring 160 and the mechanism 158, 992,

164l 986, 984, 166 is returned into the neutral position shown in fulllines in Fig. '7, wherein the stop switch' 4140 is closed and the startswitch 3820 and the inching speed switch 4900 are opened as describedabove.

During above described movement of the shipper rod 158 from the neutralposition in the direction of the arrow F and back into the neutralposition in the direction of the arrow C, the start switch 3820 and theinching speed switch 4140 are not actuated. During said movement of theshipper rod, only the round inactive portion of the cam 984 contacts thecontrol element 3821 of the start switch, so that the position thereofremains unchanged. Furthermore, the surface B-G of the element 166 is ofsuch a shape, -that it does not cause any movement of the controlelement 4910 of the inching speed switch 4900, when the lever 986 isswung in counter-clockwise direction from the neutral position and isreturned subsequently into said neutral position.

The beam 4400, the pressure roll 1320 and the measuring or yarn roll 168are provided with brakes, by means of which these elements may bearrested immediately upon an interruption of the supply of current tothe electromotor 4600. A single torque motor 112 (Figs. 1-4), i. e. amotor with high starting torque which may be loaded to such a degreethat a stoppage occurs without an undue heating of the parts of themotor, is mounted on a bracket 56 secured to a wall of the beamer and isoperatively connected with the brakes of the beam of the pressure rolland of the measuring roll in a manner to be described hereinafter for asimultaneous application of said brakes. As will be readily understood,the masses of the pressure roll and measuring roll remain constantduring the beaming operation, while the mass of the beam is increased independence on the building up of the Winding on the beam, i. e. independence on th'e increase of the diameter of the Winding on the beam.In order to obtain the same constant braking time of the brakes of thebeam the pressure roll and the measuring roll irrespective of thevariation of th'e mass of the beam in dependence on the variation of thediameter of the Winding thereon, the braking means and their control arearranged and designed in the following manner:

A pinion 116 secured to the shaft 114 of the torque motor 112 is in meshwith a gear segment 118 keyed to a cross-shaft 180 rotatably mounted insuitable bearings 58 and 60 of the beamer (Figs. 1-4). As best shown inFigs. 3 and 4, on each side of the beamer, an arm 182 and 62respectively is secured to the cross-shaft 180. The free end of the arm62 is pivotally connected to one end of a connecting link 64, the otherend of which carries a pin 66 engaged with a slot 68 of a braking lever10 swingably mounted on a stud 12 secured to the bracket 880. Therelative position between the link 64 and the braking lever 10 may beadjusted by means of two opposite screws 14 screwed into the end of thelever 10 and engaged with the pin 66. A stud 16 secured to anintermediate point of the braking lever 10 is engaged with a brake band18 adapted to be applied on the brake drum 834 of the beam 4400. Theother end of said brake band 18 is connected with the stud 12 secured tothe bracket 880. Likewise, the free end of the arm 182 is pivotallyconnected to one end of a connecting link 184 (Figs. 1 and 4), the otherend of which is adjustably and pivotally connected with one end of abraking lever 186 at 80. The other end of the braking lever 186 isswingably arranged on a stud 188 secured to the bracket 818, and a stud82 is arranged on an intermediate point of the braking lever 186. Asbest shown in Fig. 2, one end of a brake band 84 adapted for cooperationwith the brake drum 134 of .the beam 4400 is engaged with the stud 188,while the other end of said brake band is engaged with the stud 82.Thus, if the torque motor 112 is excited and the gear segment 118 isrotated in counter-clockwise direction into the position shown in Fig.3, the brake bands 18 and 84 are applied on the brake drums 834 and 134in accordance with the output of the torque motor. The above describedadjusting means 66, 68, 14 and 80 may be used for adjusting a certainbraking time of the braking mechanism for a certain mass of the beam anda certain output of the torque motor 112. As pointed out above, duringthe beaming operation the mass of the beam varies in dependence on theincrease of the diameter of the winding on the beam. As it is desired toobtain a constant braking time of the beam brake irrespective of ythevariation of the mass of the beam in dependence on the increase of thediameter of the winding on the beam, the output of the torque motorshould be increased in dependence on the increase of the diameter of thewinding on the beam. For that purpose, the three-phase resistor 658automatically controlled by the pressure roll |320 through the mechanism144, 956, 146, 148, 150, 156, 152 in dependence on the increase of thediameter of the winding on the beam is arranged in circuit with thetorque motor 112 as shown in Fig. 10. The larger the diameter of thewinding and the greater the mass of the beam, the smaller the resistanceof the resistor 658 and the higher the output of the torque motor 112.Thus, the output of the torque motor 112 is automatically controlled independence on the increase of the diameter of the winding on the beam,so that a substantially constant braking time of the beam brake isobtained.

As best shown in Figs. 3 and 4, a projecting arm 190 integral with thebody of the gear segment 118 is connected with one end of a Bowden wire192, the other end of which is connected to an arm 86 of a bell cranklever 88. As best shown in Figs. and 6, the bell crank lever 88 issecured to a shaft 90 rotatably mounted on the arm 928 pivotallyconnected with the end disc 934 of the pressure roll |320 at 932. Atension spring 92 stretched between the other arm 94 of the bell cranklever 88 and an extension 96 of the arm 928 tends .to swing the shaft 90in clockwise direction as viewed in Fig. 5. A brake element |00 providedwith a lining |02 and a brake element |04 carrying a lining |06 arepivotally mounted on the arm 928 at |08. The end portion ||0 of thebrake element |00 and the end portion ||2 of the brake element |04 arereduced in width with respect to the main body of the respective brakeband and are arranged next to each other. A tension spring ||4 stretchedbetween the end H0 of the brake element |00 and an arm of a member IIBsecured to a shaft ||8 arranged on the arm 928 tends to apply .the brakeelement |00 on the inner cylindrical surface of the end disc 934 of thepressure roll |320. A tension spring stretched between the end ||2 ofthe brake element |04 and the other arm of the member ||6 tends to applythe brake element |04 on the inner cylindrical surface of the end disc934. An abutment |22 of the brake element |00 and an abutment |24 of thebrake element |04 are arranged for cooperation with a spreader |26formed by a flattened portion of the oscillatable shaft 90. Fig. 5illustrates the elements in a position, where the brake elements areapplied. Normally, however, the spreader |28 is in a position turned incounter-clockwise direction through an angle of about 70 with respect tothe position shown in Fig. 5, so that its edges contact the abutments|22 and |24 and spread same further apart from each other, whereby thebrake bands |02 and |04 are disengaged from the cylindrical surface ofthe end disc 934 and the pressure roll |320 may freely rotate. As soonas the torque motor 112 is excited and the gear segment 118 is movedinto the position shown in Fig. 3, the shaft and the spreader |26 areswung in clockwise direction by means of the Bowden wire 192 into theposition shown in Fig. 5 with the assistance of the tension spring 92,whereby the edges of the spreader |26 are disengaged from the abutments|22 and |24, so that the brake elements |00 and |04 are applied on thecylindrical surface of the end disc 934 by the action of the tensionsprings ||4 and |20 for an immediate stoppage of the pressure roll |320.Obviously, the braking action of the braking elements on the constantmass of the pressure roll is caused only by the constant force of thetension springs ||4 and |20 after a release of said springs by thespreader or locking means |26 and is entirely independent of the outputof the torque motor 112 varying in accordance with the increase of thediameter of the winding on the beam, so that a constant braking time ofthe pressure roll brake is obtained.

When the torque motor 112 is deenergized for a release of the brakes,the shaft 90 and the spreader |26 are returned through the medium of theBowden wire 192 in counter-clockwise direction into their normalposition at an angle of about '10 to the position shown in Fig. 5 bymeans of a tension spring |28 stretched between the gear segment 118 anda stationary point |30 of the beamer as shown in Fig. 3. Of course, thespring |28 is so designed that it may overcome the action of the springs||4 and |20 on the spreader |26.

As described above, one end of each of the tension springs ||4 and 20 isconnected with the member ||6. Said member ||6 is secured to a shaft ||8rotatably mounted on the arm 928. A rotation of the member ||6 by arotation of the shaft I8 results in a. change of the length of thetension springs ||4 and |20, whereby the braking action of these springswill be changed. A segment |36 provided with a curved slot |38 issecured to the shaft ||8 for an adjustment of the position of the member||6 and the braking action of the springs H4 and |20, i. t. for theadjustment 0f a certain braking time of the pressure roll brake. Theadjusting mechanism ||6, H8, |36 may be held in its position by a screw|40, which is arranged on the arm 928 and passes through the curved slot|38 of the segment |36.

As best shown in Figs. 2-4, an arm 194 integral with the body of thegear segment 118 is pivotally connected to one end of a link 196, theother end of which is pivoted to a lever |42 secured to a shaft |44rotatably arranged on the frame of the beamer. A spreader |46 arrangedin the space between the extensions |48 and |50 of two brake shoes |52and |54 is secured to the shaft dammen ILAHLLQ |44. The brake shoes |52and |54 provided with the usual lining are pivotally mounted on thebeamer at |56 for cooperation with a brake surface on the measuring roll168. A bolt |58 with head |51 and nut |59 extends through holes of theextensions |48 and |50, and a compression spring |60 arranged betweenthe nut |58 and the extension |48 tends to apply the brake shoes on thebrake surface of the measuring roll 168. Fig. 3 illustrates the spreader|46 in a position disenga-ged from the extensions |48 and |50, so thatthe brake shoes |52 and |54 are applied by the spring |60. Norm owever,the spreader is inaposition,whr' ts 'th :l n ci ,l s @Gaaf/Ewige@ thlatter-m As soon as the torque motor 112 is excited and the gear segment118 is swung in counter-clockwise direction into the position shown inFig. 3, the spreader |46 is swung in counter-clockwise direction by thelink 186, whereby its edges are disengaged from the extensions |48 and|50 and the brake shoes |52 and |54 are applied on the brake surface ofthe measuring roll 168 by the action of the spring |60 for an immediatestoppage of the measuring roll. As soon as the torque motor 112 isdeenergized for a release of the brakes, the spreader |46 is swung inclockwise direction by means of the tension spring |28 acting on thegear segment 118 against the action of the compression spring |60,whereby the extensions |48 and |58 are spread apart from each other fora disengagement of the brake shoes |52 and |54 from the brake surface ofthe measuring roll 168. The adjustment of a certain braking time of themeasuring roll brake may be obtained by an adjustment of the force ofthe compression spring |60 by means of a variation of the position ofthe nut |58 on the bolt |58. The o rat n of the br ng mechor am roll issimi ar to pressur mand 54 on the constant mass of the measuring roll168 is caused only by the constant force of the spring |60 after arelease of said spring by the spreader or locking means |56 and isentirely independent of the varying output of the torque motor 112, sothat a constant braking time of the measuring roll brake is obtained.

As described above, the gear segment 118 driven by the torque motor 112is operatively connected with the brake of the beam 4400 by the linkage62, 64, 10 and 182, 184, 186, with the brake of the pressure roll |320bythe arm 190 and Bowden wire 182, and with the brake of the measuringroll 168 by the arm 184 and the link 196, so that all brakes are appliedsimultaneously upon an energization of the torque motor 112.Furthermore, the braking time of all brakes is adjustable with respectto each other and the brakes of the beam, the mass of which variesduring the beaming operation, is actuated directly through the torquemotor by the linkage 62, 64, 10, 184, 186 in dependence on the output ofthe torque motor -varying in accordance with the building up of thewinding on the beam, while the brakes of the pressure roll and measuringroll, the masses of which are constant, are actuated indirectly throughthe torque motor 112 by a release of the springs ||4, |20 and |60exerting constant forces on the brakes, so that the same constantbraking time of all brakes may be obtained irrespective of the variationof .the mass of the beam in dependence on the increase of the diameterof the winding thereon.

Although in the preferred embodiment of my invention a torque motor isused for the application of the brakes, any other suitable electricalmeans, for example a brake solenoid acting on the various brakingmechanismsl could be used, if desired.

The frame of th'e beamer is supported by rollers 198 secured tolongitudinal shafts 800 and |62 joumalled in suitable bearings, one oneach side of the beamer. A sprocket |64 keyed to the shaft 600 isconnected by a chain 802 with a sprocket |66 secured to the shaft |10 ofa transmission |12 including a self-locking worm keyed to the shaft |14of a reversible motor 4800. lThe casing of the transmission |12 and thereversible motor 4800 are mounted in a suitable manner on the supportingmember 822. Thus, the beamer may be moved sidewise in one direction orthe other upon an energization of the reversible motor 4800, so that thebeamer may be easily placed in registry with' different creeis arrangedparallel to each other.

Referring now to Fig. 10 illustrating the wiring system for theelectrical equipment of the beaming plant, the circuits for theoperation and the control of certain parts of the beaming plant will bedescribed hereinafter. For the remaining circuits reference is h'ad tothe description of said remaining circuits in my Patent #2,324,- 611relating to An electrical control system for a warping or beaming planissued on July 20, 1943, wherein said circuits are more fully described.

The A. C. motor 352 of the A. C. to D. C. motor generator set 2800 issupplied with alternating current from an electrical source (not shown)through the lines 30 upon closure of the hand switch 3540. The generator356 of the A. C. to D. C. motor generator set 2600 produces the directcurrent.

The generator 356 is arranged in the following main motor circuit: Theterminal 358 of the generator 356 is connected with the terminal 360 ofthe driving D. C. electromotor 4600 of the beamer through the line 362including the electromagnet 364 of a motor field vibrating relay 366.The terminal 368 of the generator 356 is connected with the terminal 310of the driving electromotor 4600 through the line 312 including the poleM1 of the triple pole main switch' M controlled by the trip coil magnet314, the solenoid 316 of an overload circuit breaker and the series eld380 of the electromotor 4600.

As will be apparent from the foregoing, the electromotor 4600 drivingthe beam inserted into the beamer may be started by closing the pole M1of th'e main switch M. This pole M1 may be closed by an energization ofthe trip coil magnet 314, which is arranged in the following motor startcircuii.: A line 384 leads from the righthand terminal of the startswitch 3820 to the left-hand terminal of th'e over-load circuit breaker318the right-hand terminal of which is connected with the trip coilmagnet 314 by the line 386 including the safety switch 650 controlled bythe lug 136 on the swingable supporting member 1|6 in the mannerdescribed above. A line 388 leads from the trip coil magnet 314 to themovable finger 3800 of the automatic motor field rheostat 2580controlled by the movable pressure roll assembly 138, |320 as describedabove in dependence on the increase of the diameter of the Winding onthe beam 4400 during the operation of the beamer. The coil 3920 of theautomatic motor field rheostat 2580 is connected with one end of theshunt field 394 of the electrornotor 4600 through a line 396. The otherend of the shunt field 394 is connected with the left-hand terminal ofthe start switch 3820 through aline 398. Currentl is supplied to abovedescribed motor start circuit from the exciter 456 of the A. C. to D. C.motor generator set 2600 by means of a line 452 connecting the ter minal454 with a junction point 448 in the line 388 and by means of a line 418connecting the terminal 458 with' a junction point 416 in the line 398.The safety switch 650 and the start switch 3820 are normally held intheir open position by the action of springs (not shown) as describedabove. If the safety switch 650 is closed upon a movement of the beaminto the operating position shown in Fig. 1, and if the start switch3020 is closed by a rotation of the shipper rod in the direction of thearrow C from the neutral position shown in Fig. '1, the above describedmotor start circuit is closed, whereby the trip coil magnet 314 isexcited for closing the main switch M with its pole Mi, which in turncloses the above described main motor circuit for starting theelectromotor 4600. T'he action of the inching speed switch 4900, whichis closed Simultaneously with the start switch 3820 and causes a slowspeed operation of the motor 4600 will be described hereinafter inconnection with the description of the circuits including said inchingspeed switch When the trip coil magnet 314 is excited by closing abovedescribed motor start circuit by means of the spring loaded start switch3820, the pole Mz of the main switch M is also closed, whereby a motorstart holding circuit including the trip coil magnet of the main switchis closed as will be described hereinafter, so that the main switchremains in closed position upon a subsequent release of the springloaded start switch by a return of the mechanism controlling the startswitch into the neutral position shown in Fig. 7. Said motor startholding circuit may be traced as follows starting from the left-handterminal of the start switch 3820: The line 398, the shunt field 394,the automatic rheostat 2580, the line 388, the trip coil magnet 314 ofthe main switch M, the line 386, the safety switch 650, the bridge ofthe overload circuit breaker 318, and the line 400 connecting theleft-hand terminal of the circuit breaker 318 with the left-handterminal of the start switch 3820, said line 400 including the pole M2of the main switch M, the

switch 402 of a counter stop relay 404, the switch 408 of a warp brakerelay 408, the electromagnet 4I0 of a time relay 4I2, and the stopswitch 4I40 normally held in closed position by a spring (not shown).

The main switch M is opened and the supply of direct current to theelectromotor 4600 is interrupted at the pole M1, as soon as the abovedescribed motor start holding circuit including the trip coil magnet 314is interrupted either at the stop switch 4l40 or at the circuit openingswitch 406 of the warp brake relay 408 or at the circuit opening switch402 of the counter stop relay 404 or at the safety switch 650. Theopening of the spring loaded stop switch 4|40 takes place when thebeamer is arrestedby hand by turning the shipper rod 158 in thedirection of the arrow F from the neutral position shown in Fig. '1. Theopening of the switch 406 takes place when one or more control needles4I60 in the creel 2400 drop and close a needle control circuit owing toa breakage of yarn as will be described hereinafter. The opening of theswitch 402 takes place when the normally closed switch 4I80 of the shutoff counter 9800 is opened after the performance of a predeterminednumber of revolutions of the beam as more fully described in my Patent#2,324,611 issued on July 20, 1943. The opening of the safety switch 650takes place when the supporting member 1| 6 carrying the beam 4400 movesaway from the operating position.

Any of above mentioned interruptions of the motor start holding circuitcauses an energization of an electromagnet 612 of a torque motor relay614, whereby a three-pole switch S is closed for supplying current tothe torque motor 112, so that the latter is excited and the brakes ofthe beam 4400, pressure roll i320 and measuring roll 168 are appliedsimultaneously in the manner described above. The electromagnet 612 ofthe torque motorrrelay 814 is arranged in the following brake circuitstarting from the terminal 804 of the secondary winding 546 of a lowvoltage transformer 548: A line 616 leading from the terminal 804 of thesecondary winding to the left-hand terminal of a brake control switch430 controlled by the electromagnet 434 of a brake control relay 432; aline 618 connecting the right-hand terminal of the brake control switch430 with the electromagnet 612; a line 880 connecting the electromagnet612 with the righthand terminal of the switch 424 of the time relay 4I2;and a line 682 connecting the left-hand terminal of the switch 424 withthe terminal 806 of the secondary winding 546. The primary winding 514of the low voltage transformer 548 is connected with two lines of the A.C. supply line in the following manner: a line 428 leading from thejunction point 426 to the junction point 5|0 connected with one end ofthe primary winding 514 by a line 516; the portion of a line 516 betweena junction point 5l4 and a junction point 5l1, and a line 518 connectingthe junction point 5I1 with the other end of the primary winding 514.The electromagnet 434 controlling the brake control switch 430 of thebrake control relay 432 is arranged in the following brake controlcircuit: A line 436 leading from the electromagnet 434 to the junctionpoint 438, the portion of the line 388 from said junction point 438 tothe trip coil magnet 314, the portion of the line 386 leading from thetrip coil magnet 314 to the junction point 440, and the line 442connecting said junction point 440 with the electromagnet 434. Thus, assoon as the motor start holding circuit including the trip coil magnet314 is interrupted at the stop switch 4I40 or the circuit opening switch406 or the circuit opening switch 402 or the safety switch 650, thedescribed brake control circuit including the electromagnet 434 of thebrake control relay 432 is also interrupted, so that the electromagnet434 is deenergized and the brake control switch 430 is closed. At thesame time, the electromagnet 4 I0 of the time relay 4I2, which isarranged in the motor start holding circuit including the trip coilmagnet 314 is also deenergized. Owing to the delaying action of the timerelay 4l2, however, the switch 424 remains for a short period, forexample 2 sec., in the closed position 424 shown in dash lines, so thatthe brake circuit including the electromagnet 612 of the torque motorrelay 614 will be closed and the latter will cause a closing of theswitch S for an energization of the torque motor 112 and an applicationof the various brakes of the beamer, as

BVI

Um! b" HUL soon as the electromagnet 434 of the brake control relay 432is deenergized and the brake control switch 430 thereof is closed. Aftersaid short period of 2 sec., for example, however, the switch 424 of thedeenergized time relay 4|2 comes into the open position shown in fulllines, so that the electromagnet 612 of the torque motor relay 614 isdeenergized, whereby the switch S is opened and the supply of current tothe torque motor 112 is interrupted. Thus, the brakes of the beamer arereleased after a short period of application corresponding to thedelaying action of the time relay. Incidentally, it may be mentioned,that a restarting of the electromotor 4600 causes an energization of theelectromagnet 4|0 of the time relay 4|2, which is arranged in the motorstart holding circuit, so that the switch 424 is again closed so as torender the brake circuit ready for the next braking operation in themanner described above.

'Ihe torque motor 112 is connected with the three phases of the A. C.supply line in the following manner: A line 428 leading from thejunction point 422 to the junction point 506, a line 660 leading fromthe junction point 506 to the terminal 662 of the torque motor, saidline including the pole S1 of the triple pole switch S controlled by theelectromagnet 612 and a first coil of the adjustable resistor 658controlled by the pressure roll assembly 138, i320 in dependence on theincrease of the diameter of the winding on the beam; the line 428leading from the junction point 426 to the junction point 5|0; a line664 leading from the junction point 510 to the terminal 666 of thetorque motor, said line including the pole S2 of the switch S and asecond coil of the adjustable resistor 658; the portion of the line 5|6leading from the junction point 514 to the junction point 5|1, a line668 leading from the junction point 5I1 to the terminal 610 of thetorque motor, said line including the pole S3 of the switch S and athird coil of the adjustable resistor 658. Thus, above described closingof the switch S by the electromagnet 612 causes a supply of alternatingcurrent to the torque motor 112, and the output of the torque motor iscontrolled by the adjustable resistor 658 in dependence on the diameterof the winding on the beam.

In the embodiment shown in Fig. 10, the electrical control system forthe beamer is also equipped with an electrical brake, which becomeseiective in addition to the mechanical brakes of the beamer actuated bythe torque motor. For this purpose anadjustable dynamic braking resistor684 is connected with the junction points 686 and 688 in the lines 362and 312 of the main motor circuit by means of a line 690 including aswitch 692 of a dynamic resistor relay 694. The electromagnet 696 ofsaid relay 694 is arranged in parallel to the electromagnet 434 of thebrake control relay 432 by means of lines 698. Therefore, theelectromagnet 696 is excited and the switch 692 controlled by saidelectromagnet is open as long as the motor start holding circuit lsclosed and the electromotor 4600 drives the beam. As soon as the motorstart holding circuit is interrupted in any of above described mannersand the electromagnet 434 of the brake control relay 432 and theelectromagnet 696 of the dynamic resistor relay 694 are deenergized, theswitch 692 is closed and shorts the electromotor 4600 through thedynamic braking resistor 684, whereby an additional braking .of therotating mass of the beam connected with the electromotor is obtained.The above described electrical brake including the adjustable dynamicbraking resistor 684 may be used for an additional adjustment of thebraking time required for bringing the mass of the beam to a standstill.Of course, the electrical brake may be entirely omitted, if desired.

As pointed out above, the automatic motor eld rheostat 2580 controlledby the pressure roll assembly 138, |320 in dependence on the increase ofthe diameter of the winding on the beam 4400 is arranged in the motorstart holding circuit. Said motor iield rheostat 2580 serves to cause anautomatic reduction of the operating speed of the electromotor 4600 froma predetermined normal degree to a lower degree, so that a substantiallyconstant travelling speed of the warp yarns resulting in a substantiallyconstant tension in the yarns is obtained during the operation of thebeamer. The normal travelling speed of the warp yarns is determined bysaid predetermined normal operating speed of the electromotor 4600 atthe beginning of the beaming operation after the termination of theinching speed operation. Diiierent yarns of different size and/ormaterial require different travelling speeds to obtain the propertension in the yarns. For this purpose, an additional electricaladjusting means or a generator eld hand rheostat 3500 is mounted on aside wall of the beamer as shown in Figs. 1 and 4. The generator eldhand rheostat 3500 may be used for a manual adjustment of saidpredetermined normal operating speed of the electromotor 4600 drivingthe f beam and is arranged in the following normal speed controlcircuit: A line 444 leads from the end 445 of the coil 446 of thegenerator field hand rheostat 3500 to the pole M3 of the main switch M,which in turn is connected with the junction point 448 in the line 388by a line 450. The line 452 leads from said ljunction point 448 to theterminal 454 of the exciter 456. 'Ihe terminal 458 of the exciter 456 isconnected with one end of the field 460 of the D. C. generator 356 by aportion of the line 418 at the point 410. The other end of the eld 460is connected with the movable finger 464 of the hand rheostat 3500through a line 466 including the speed control switch 468 of the warpbrake relay 408. The end 441 of the coil 448 of the hand rheostat 3500is connected with the junction point 410 through a line 412 leading to ajunction point 414, through the portion of the line 398 connecting thejunction 414 with a junction point 416, and through a portion of theline 418 connecting the junction point 416 with the junction point 410.As will be apparent from the described connections, the generator eld460 is energized by the exciter 456 which generates a constantpotential. This potential is applied to a circuit comprising theleft-hand portion (as viewed in Fig. 10) of ".h'e coil 446 of thegenerator eld hand rheostat 3500 in parallel with the generator field460 and the right-hand portion of the coil 446 of the generator eld handrheostat 3500 in series with these. A manual movement of the linger 464across the generator eld hand rheostat 3500 will cause a variation ofthe potential applied to the generator eld 460 and, consequently, avariation of the current owing through this generator iield during thenormal operation of the beamer. If, for example, the nger 464 is movedto the right, the energization of the generator eld and the currentowing through said generator eld are increased. Therefore, the currentflowing through the generator field is in proportion to the setting ofthe finger 464 of the hand rheostat 3500. This current, when high, givesa high voltage generated by the generator 356, when low, a low voltagegenerated, i. e. the potential generated by the generator is variable.The normal operating speed of the electromotor 46 at the beginning ofthe beaming operation after the termination of the inching speedoperation is determined by the voltage of the direct current supplied tothe electromotor, and, therefore, the normal operating speed of theelectromotor may be easily adjusted by means of the generator field handrheostat 3500.

As will be apparent from the foregoing, the generator field handrheostat 3500 serves to adjust a predetermined normal operating speed ofthe electromotor 4600 of the beamer by hand, while the automatic motorfield rheostat 2580 controlled by the pressure roll assembly 138, 1320serves to automatically reduce the operating speed of the electromotor4600 from said predetermined normal value to a lower value, so as toobtain a substantially constant tension in the yarns and/or constanttravelling speed of the yarns respectively during the beaming operation.For a better explanation of my invention, the operation of theelectromotor at said normal operating speed and at said reduced loweroperating speed shall be termed the "normal high speed operation of theelectromotor in contrast to the very low speed operation or theso-called inchlng speed operation" of the electromotor 4600. which isdesirable under certain circumstances, for example, rst, after theoccurrence of a yarn breakage and the tying of the ends of the brokenyarns, until the slack in the yarn or yarns has been taken up, or,second, at the beginning of a beaming operation, until a few layers ofthe winding have been wound on the beam.

The operation of the electromotor 4600 at normal high speed operation orat inching speed operation is controlled by the speed control switch 468of the warp brake relay 408, which in turn is controlled by the controlneedles 4160 in the creel and/or by the inching speed switch 4800 on thebeamer as will be described hereinafter. The speed control switch 468 isarranged in the normal speed control circuit including the generatorfield 460 and the generator field hand rheostat 3500 as described above.As long as the electromagnet 482 of the warp brake relay 408 isdeenergized and the speed control switch 468 is closed, the electromotor4600 may operate at normal high speed operation as described above. If,however, the speed control switch 468 is opened by an energization ofthe electromagnet 482 upon the dropping of a control needle 4160 owingto a breakage of yarn or upon the manual closing of the inching speedswitch 4900, the generator field hand rheostat 3500 is disconnected fromthe generator field 460. An adjustable inching resistor 484 is arrangedin series with the generator iield 460 between the junction points 486and 488 in the lines 466 and 444 respectively, so that, after the abovementioned disconnection of the generator eld hand rheostat 3500 from thegenerator eld 460, the current now may i'low through the followinginching speed control circuit: exciter 456, line 462, generator eld 460,line 466, inching resistor 484, line 444, pole M3, lines 450, 452.Therefore, under these circumstances and upon closure of the main switchM including the pole M3, a current proportional to the combinedresistance of the generator field 460 and the adjustable inchingresistor 484 arranged in series with each other will pass through thegenerator field, setting up a flux which will produce the low voltagerequired for the low inching speed and the low torque of theelectromotor 4600. It may be mentioned, that this ux, and thereforevoltage and torque, are independent of the setting of the generator eldhand rheostat 3500, as the latter is disconnected from the generator eld460. On the other hand, the generator eld hand rheostat 3500 will bereconnected with the generator eld 460 and a further operation of theelectromotor 4600 at inching speed will be rendered impossible as soonas the speed control switch 468 controlled by the electromagnet 482 ofthe warp brake relay 408 will be returned into closing position upon areturn of the control needle 4160 and/or the inching speed switch 4900into open position.

Now, the circuits controlling the electromagnet 482 of the warp brakerelay 408 containing the speed control switch 468 will be described.

The electromagnet 482 is arranged in the following warp brake relaycontrol circuit: A line 568 connects the electromagnet 482 with thelefthand terminal of a switch 566 controlled by an electromagnet 556 ofa warp brake sensitive intermediate relay 558; a. line 512 leads fromthe right-hand terminal of said switch 566 to a junction point 510 in aline 550; the portion of the line 550 that leads from said junctionpoint 510 to the terminal 804 of the secondary winding 546 of the lowervoltage transformer 548; the secondary winding 546; a line 544 leading 3,from the secondary winding 546 to the junction point 542, and theportion of a line 540 that leads from said junction point 542 to theelectromagnet 482. Obviously, the electromagnet 482 of the warp brakerelay 408 will be excited for opening the speed control switch 468, assoon as the electromagnet 556 of the warp brake sensitive intermediaterelay 558 is excited for closing the switch 566.

The electromagnet 556 is arranged in the following needle controlcircuit: A line 630 connecting the electromagnet 556 with one terminalof a creel terminal base 632 mounted on the creel 2400; the controlneedle 4160, a line 634 leading from the other terminal of the creelterminal base 632 to the junction point 534; the line 536 connecting thejunction point 534 with the junction point 538; the portion of the line540 that connects the junction point 538 with the junction point 542;the line 544; the secondary winding 546 of the low voltage transformer548; the line 550 up to the junction point 552; and a line 554connecting the junction point F52 with the electromagnet 556. AlthoughFig. 10 diagrammatically illustrates only one control needle 4160arranged on the creel terminal base 632, the creel carries a pluralityof control needles 4160, one for each warp yarn 3400 to be drawn from abobbin 3600 as shown in Fig. 1.

If one or more cdntrol needles 4160 of the creel drop owing to abreakage of yarn, the above described needle control circuit is closed,whereby the electromagnet 556 of the Warp brake sensitive intermediaterelay 558 is excited, so that the switch 566 is closed which in turncauses an excitement of the electromagnet 482 of the warp brake relay408 resulting in an opening of the speed control switch 468 and of thecircuit opening switch 406. The latter causes an intermediate stoppageof the beamer and application of the brakes as described above. Thebrakes are released after a short period of application as describedabove. The switches 406 and 468, however, remain in open position afterthe tying of the ends of the broken yarn as long as one or more controlneedles 4160 are in dropped position due to slack in a yarn or yarns.Thus, the electromotor 4600 can be restarted at inching speed only byclosing the start switch 3820 by hand and holding same in closedposition, until the slack in the yarns has been taken up; as soon as,upon removal of the slack in the yarns, all controll needles 4160 areagain in their open position and the switches 406 and 468 are againclosed, the start switch 3820 may be released for return into theneutral position shown in Fig. 7 by the action of the spring 160,whereupon the operation of the electromotor 4600 will continue at normalhigh speed, as now the motor start holding circuit including the switch406 and the normal speed control circuit including the switch 468 areclosed.

The manual inching speed switch 4900 is connected with the warp brakerelay control circuit in parallel to the switch 566 of the warp brakesensitive intermediate relay 558 lby lines 652. Thus, a closing of theinching speed switch 4900 may also cause an energization of theelectromagnet 482 of the warp brake relay 408 and an opening of theswitches 406 and 468. As pointed out above, the inching speed switch4900 is normally in the neutral position shown in Fig. 7, wherein thespring acting on its control element 4010 holds the inching speed switchin open position. If, for the start of the beamer, the shipper rod 158(Fig. '7) is turned in the direction of the arrow C into theintermediate position described above, both, the start switch 3820 andthe inching speed switch 4900 are closed. Although the closing of theinching speed switch 4900 causes an opening of the circuit openingswitch 406 arranged in the motor start holding circuit, the electromotor4600 may be operated as long as the start switch 3820 arranged in themotor start circuit is held in closing position; but, the electromotor4600 may be operated at inching speed only, as, under thesecircumstances, the speed control switch 468 is also held in openposition by the closing of the inching speed switch 4900. As soon as,after the laying of a few windings on the beam, the shipper rod 158 isturned further from the intermediate position in the direction of thearrow C into the extreme active position, the inching speed switch 4900is opened, while the start switch 3820 remains in closed position. Theopening of the inching speed switch 4900 causes an automatic closing ofthe speed control switch 468 resulting in an automatic increase of thespeed of operation of the electromotor 4600 to normal high speedoperation. Furthermore, the opening of the inching speed switch 4900results in the closing of the motor start holding circuit by the switch406. Now, the shipper rod 158 may be released for a return into theneutral position by the action of the spring 160; the operation of theelectromotor 4600 continues at normal high speed, as the switches 406and 468 controlled by the electromagnet 482 in response to the openingof the lnching speed switch 4900 are in closed position.

The operation of the electromotor 4600 is arrested and the brakes of thebeamer are applied, when the shipper rod 158 is turned from the neutralposition in the direction of the arrow F (Fig. 7) for an opening of thestop switch 4 I 40, or when a control needle 4 I 60 drops and causes anopening of the switch 406, or when the safety switch 650 is opened; inall these cases the motor start holding circuit is interrupted.

Furthermore, an interruption of the motor start holding circuitresulting in a stoppage of the electromotor 4600 and an application ofthe brakes takes place, when the normally closed switch 4180 of the shutoff counter 9800 is opened after the performance of a predeterminednumber of revolutions of the beam and causes an opening of the switch402 of the counter stop relay 404. Reference is had to my Patent#2,324,611 relating to An electrical control system for a warping orbeaming plant, issued on July 20, 1943, for a full description of thecircuits connecting the shut of! counter 9800 with the counter stoprelay 404.

Moreover, reference is had to the same Patent #2,324,611 issued on July20, 1943 for a detailed description of the reset station 654 with thereset push button 6160 and the pilot lamp 8240 and their electricalconnections with the electrical control system. Incidentally, it may bementioned, that the electromagnet 606 of the shut off counter relay 512is excited and the switch 580 of said relay is opened and the switch 581of said relay is closed when the electrical control system is set for anoperation of the beaming plant upon an actuation of the spring loadedreset push button 6160. The reset-station" 654 is mounted on theextension 914 of the side wall of the beamer as best shown in Figs. 1and 4.

The reversible motor 4800 for moving the beamer sidewise in onedirection or the other is electrically connected through lines 522, 524,528 with a hand reversing switch 4960 mounted on the wall of the beamer.The reversing switch 4960 is electrically connected with the junctionpoints 506, 510, 511 through lines 508, 512 and 516.

6480 indicates an electrical control box secured to the frame of thebeamer. Said electrical control box may be used for the reception andmounting of various instruments, for example the warp brake relay 408,the Warp brake sensitive intermediate relay 558, the shut 01T counterrelay 582, the time delay relay 412, the low voltage transformer 548,the counter stop relay 404, the brake control relay 432 and the motorfield vibrating relay 366.

Figs. 1l and 12 illustrate a different mechanism of a beamer forrotating the beam. In these figures, parts of the beamer correspondingto equal parts of the beamer shown in Figs. 1-4 are indicated by thesame reference numerals. While according to Figs. 1-4 the beam isequipped with a gear 114 for engagement with a driving pinion 112 andwith a disc 134 for engagement with a driving friction pulley 816, thegear and disc as well as the pinion and the pulley being arranged nextto each other, the beam 4400 shown in Figs. 1l and 12 has only a groovedfriction disc '135 for operative engagement with a driving wedgefriction pulley 811 keyed to the driving shaft 102 driven by theelectromotor 4800 through the medium of the step pulleys 10 `d 110 andthe belt 104. The brake-band 85,/ "onnected with the braking lever 186at 82 and pivoted to the bracket 818 at 188 is wedge-shaped for properengagement with the groove of the grooved disc or braking drum 135. Allthe remaining parts of the beamer may be of the same form andarrangement as shown in Figs. 1-4.

When the beam 4400 shown in Figs. 11 and 12 is lifted by the swingablesupport 116 into the operating position, the cam 858 cooperating withthe axle or rod 854 of the beam guides the beam in such a manner, thatits grooved friction disc 135 comes into proper engagement with thedriving wedge friction pulley BIT.

The mechanism shown in Figs. ll and 12 has the advantage of theelimination of a noisy gear drive. Furthermore, the arrangement of thebeamer adjusting means generally indicated by 888 in Figs. 2 and 4 maybe omitted, as the engagement of the wedge friction pulley 8I1 with thegrooved friction disc 135 also causes an adjustment of the beam 4400 inthe direction of its longitudinal axis. Moreover, the mechanism shown inFigs. l1 and 12 allows for a smaller width of the beamer.

The mechanism shown in Figs. 11 and 12 has only a single driving wedgefriction pulley 8H on one side of the beamer for cooperation with thegrooved friction dise 135 of the beam. If desired, however, two drivingwedge friction pulleys may be keyed to a transverse driving shaftsubstituted for the stub shaft |02 shown in the drawings, one drivingwedge friction pulley being arranged on each side of the beamer. In sucha case, the beam is provided with a complementary grooved friction discat each end thereof.

Although preferably the individual objects of the invention are appliedto a beaming plant; in the combination described, the individual objectsof the invention may be applied individually or in partial combinationto beamers. It is emphasized that the merits of the invention are notlimited to the described and illustrated combination, but the individualobjects per se also have inventive merits.

I have described preferred embodiments of my invention, but it is clearthat numerous changes and omissions may be made Without departing fromthe spirit of my invention.

What I claim is:

1. A beamer comprising: a drive for rotating a beam, a pair of spacedsupporting members for carrying the beam, each of said supportingmembers being swingably mounted on the beamer, adjusting meansassociated with said supporting members for swinging same from a lowerbeam receiving position, wherein the beam is disengaged from said drive,into an upper operative position, wherein the beam is coupled with saiddrive, and coupling means associated with the supporting members forsecuring same to a stationary member of the beamer when the supportingmembers are swung into said upper operative position.

2. A beamer comprising: a drive for rotating a beam, a pair of spacedsupporting members for carrying the beam, each of said supportingmembers being swingably mounted on the beamer, adjusting meansassociated with said supporting members for swinging same from a lowerbeam receiving position, wherein the beam is disengaged from said drive,into an upper operative position, wherein the beam is coupled with saiddrive, and a latching mechanism associated with each supporting member,each latching mechanism including a first engaging means arranged on thesupporting member and a second engaging means arranged on a stationarymember of the beamer, said engaging means of each latching mechanismbeing capable of engagement with each other for connecting thesupporting members with the stationary member of the beamer when thesupporting members are swung into said upper operative position.

3. A beamer comprising: a drive for rotating Va beam, a pair of spacedsupporting members for carrying the beam, each of said supportingmembers being swingably mounted onthe beamer, adjusting means associatedwith said supporting members for swinging same from a lower beamreceiving position, wherein the beam is disengaged from said drive, intoan upper operative position, wherein the beam is coupled with saiddrive, said adjusting means including a selflocking worm, and couplingmeans associated with the supporting members for securing same to astationary member of the beamer when the supporting members are swunginto said upper operative position.

4. A beamer comprising: a drive for rotating a beam, said driveincluding a driving shaft carrying a driving element for operativeengagement with the beam, said driving shaft being journalled instationary bearings of the beamer, a pair of spaced supporting membersfor carrying the beam, each of said supporting members being swingablymounted on a stationary point of the beamer, adjusting means associatedwith said supporting members for swinging same from a lower beamreceiving position, wherein the beam is disengaged from said drivingelement, into an upper operative position, wherein the beam isoperatively engaged with said driving element, and a guide arranged forcooperation with the beam for guiding same into the proper engagingposition with said driving element during the swinging movement of thesupporting members from the lower position into the upper operativeposition.

5. A beamer comprising: a drive for rotating a beam having an axle, saiddrive including a driving shaft carrying a driving element for operativeengagement with the beam, said driving shaft being journalled instationary bearings of the beamer, a pair of spaced supporting membersfor carrying the beam, each of said supporting members being swingablymounted on a stationary point of the beamer, adjusting means associatedwith said supporting members for swinging same from a lower beamreceiving position, wherein the beam is disengaged from said drivingelement, into an upper operative position, wherein the beam isoperatively engaged with said driving element, and cam means arrangedfor cooperation with the axle of the beam for guiding the beam into theproper engaging position with said driving element during the swingingmovement of the supporting members from the lower position into theupper operative position.

6. A beamer comprising: a drive for` rotating a beam having an axle anda gear, said drive including a. driving shaft carrying a driving pinionfor operative engagement with said gear, said driving shaft beingjournalled in stationary bearings of the beamer, a pair of spacedsupporting members for carrying the beam, each of said supportingmembers being swingably mounted on a stationary point of the beamer,adjusting means associated with said supporting members for swingingsame from a lower beam receiving position, wherein the gear of the beamis disengaged from said driving pinion, into an upper operativeposition, wherein the gear of the beam is operatively engaged with saiddriving pinion, and cam means arranged for cooperation with the axle ofthe beam for guiding the beam into the proper engaging position of itsgear with said driving pinion during the swinging movement of thesupporting members from the lower position into the upper operativeposition.

7. In a beamer as claimed in claim 6, said cam means being of such ashape, that, during the movement of the supporting members into theupper operative position, they first lift the teeth of the gear to acertain extent above the teeth of the driving pinion, whereupon theylead the teeth of the gear into engagement with the teeth of the drivingpinion in substantially radial direction.

8. A beamer comprising: a drive for rotating a beam, said driveincluding a driving shaft carrying a driving element for operativeengagement with the beam, said driving shaft being journalled instationary bearings of the beamer, a pair of spaced supporting membersfor carrying the beam, each of said supporting members being swingablymounted on a stationary point of the beamer, adjusting means associatedwith said supporting members for swinging same from a lower beamreceiving position, wherein the beam is disengaged from said drivingelement, into an upper operative position, wherein the beam isoperatively engaged with said driving element, a guide arranged forcooperation with the beam for guiding same into the proper engagingposition with said driving element during the swinging movement of thesupporting members from the lower position into the upper operativeposition, and locking means associated with the supporting members forholding same in said upper operative position.

9. A beamer comprising: a drive for rotating a beam, said driveincluding a driving shaft carrying a driving element for operativeengagement with the beam, said driving shaft being journalled instationary bearings of the beamer, a pair of spaced supporting membersfor carrying the beam, each of said supporting members being swingablymounted on the beamer and being coaxially arranged with said drivingshaft, adjusting means associated with said supporting members forswinging same from a lower beam receiving position, wherein the beam isdisengaged from said driving element, into an upper operative position,wherein the beam is operatively engaged with said driving element, andlocking means associated with the supporting members for holding same insaid upper operative position.

10. A beamer comprising: a drive for rotating a beam, said driveincluding a driving shaft carrying a driving element for operativeengagement with the beam, said driving shaft being journalled instationary bearings of the beamer, a pair of spaced supporting membersbeing swingably mounted on the beamer and being coaxially arranged withsaid driving shaft, adjusting means associated with said supportingmembers for swinging same from a lower beam receiving position, whereinthe beam is disengaged from said driving element, into an upperoperative position, wherein the beam is operatively engaged with saiddriving element, and coupling means associated with the supportingmembers for securing same to a stationary member of the beamer when thesupporting members are swung into said upper operative position.

11. A beamer comprising: a drive for rotating a beam, said driveincluding a driving shaft carrying a driving element for operativeengagement with the beam, said driving shaft being journalled instationary bearings of the beamer, a pair of spaced supporting membersbeing swingably mounted on the beamer and being coaxially arranged withsaid driving shaft, adjusting means associated with said supportingmembers for swinging same from a lower beam receiving position, whereinthe beam is disengaged from said driving element, into an upperoperative position, wherein the beam is operatively engaged with saiddriving element, and a latching mechanism associated with eachsupporting member, each latching mechanism including a first engagingmeans arranged on the supporting member and a second engaging meansarranged on a stationary member of the beamer, said engaging means ofeach latching mechanism being capable of engagement with each other forconnecting the supporting members with the stationary member of thebeamer when the supporting members are swung into said upper operativeposition.

12. A beamer comprising: a drive for rotating a beam having discs at itsends, said drive including a driving shaft carrying a driving frictionpulley for operative engagement with a disc of the beam, said drivingshaft being journalled in stationary bearings of the beamer, a pair ofspaced supporting members, said supporting members being swingablymounted on the beamer and being coaxially arranged with said drivingshaft, each supporting member carrying a bearing roller at its free endfor contacting engagement with a disc of the beam, adjusting meansassociated with said supporting members for swinging same from a lowerbeam receiving position, wherein the disc of the beam is disengaged fromsaid driving friction pulley, into an upper operative position, whereinthe disc of the beam is in operative engagement with said drivingfriction pulley, and locking means for holding the supporting members insaid upper operative position.

13. A beamer comprising: a drive for rotating a bam having discs at itsends, said drive including a driving shaft carrying a driving frictionpulley for operative engagement with a disc of the beam, said drivingshaft being journalled in stationary bearings of the beamer, a pair ofspaced supporting members, said supporting members being swingablymounted on the beamer and being coaxially arranged with said drivingshaft, each supporting member carrying a bearing roller at its free endfor contacting engagement with a disc of the beam, adjusting meansassociated with said supporting members for swinging same from a lowerbeam receiving position, wherein the disc of the beam is disengaged fromsaid driving friction pulley, into an upper operative position, whereinthe disc of the beam is in operative engagement with said drivingfriction pulley, and coupling means associated with the supportingmembers for securing same to a stationary member of the beamer when thesupporting members are swung into said upper operative position.

14. A beamer comprising: a drive for rotf-ting a beam having discs atits ends, said drive including a driving shaft carrying a driving,vfriction pulley for operative engagement with a disc of the beam, saiddriving shaft being journalled in stationary bearings of the beamer, apair of spaced supporting members, said supporting members beingswingably mounted on the beamer and being coaxially arranged with saiddriving shaft, each supporting member carrying a bearing roller at itsfree end for contacting engagement with a disc of the beam, adjustingmeans associated with said supporting members for swinging same from alowerbeam receiving posi-

